Steps to reproduce:

1. Open modal windows for an item created by discover rules (for a host with SNMPv3 Interface)
2. Test button (Problem #1 : Interface details not automatcly filled with interface data host)
3. Filled manually SNMPv3 data
4. Get value and test (Problem #2)

Result:

Problem #1 : See screenshot : Data interface is empty
Problem #2 : See screenshot : Error : Unsupported privacy protocol [0]

Expected:
for same host, it's works for a standard Item :

• Data interface is automatcly filled when i Test item
• No error with privacy protocol and i get the value from host